BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 24, Problem 2SA
Summary Introduction
Introduction:
The animal kingdom is classified into two subphyla, namely vertebrates and invertebrates, based on the presence of vertebral column. Initial development is similar for both vertebrates and invertebrates. As the embryo continues to develop, the specific characteristics of the species emerge at different stages. The nerve cord, notochord, postnatal tail, and pharyngeal slits are the four characteristics that are present in the chordates.
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Lobe-finned fishes are important because theya. were the first vertebrates.b. were the earliest animals.c. are closely related to tetrapods.d. lack jaws
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Chapter 24 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 24 - All chordates have a _______ as embryos. a....Ch. 24 - Prob. 2SACh. 24 - Vertebrate jaws evolved from _______. a. gill...Ch. 24 - Prob. 4SACh. 24 - A divergence from ________ gave rise to tetrapods....Ch. 24 - Reptiles, including birds, belong to one major...Ch. 24 - Reptiles are adapted to life on land by ______. a....Ch. 24 - The closest modern relatives of birds are...Ch. 24 - Among living animals, only birds have ________. a....Ch. 24 - The defining trait of hominins is __________. a....
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- All chordates have a _______ as embryos. a. backbone b. jaws c. notochord d. kidneysarrow_forwardA divergence from ________ gave rise to tetrapods. a. ray-finned fishes c. cartilaginous fishes b. lizards d. lobe-finned fishesarrow_forwardThe closest modern relatives of birds are ________. a. crocodilians b. mammals c. turtles d. lizardsarrow_forward
- Reptiles are much more extensively adapted to life on land than amphibians because reptiles a. have a complete digestive tract. b. lay eggs that are enclosed in shells. c. are endothermic. d. go through a larval stage.arrow_forwardTetrapods evolved from_______ . a. sharks c. lobe-finned fishes b. teleosts d. placodermsarrow_forwardThe closest living relatives of hagfishes are_____ . a. snakes c. lampreys b. sharks d. placodermsarrow_forward
- A bird or feathered dinosaur is ________. a. Neornithes b. Archaeopteryx c. Enantiornithes d. Paleognathaearrow_forwardHagfish, lampreys, sharks, and tuna are all chordates that can also be classified into which group? a. Craniates b. Vertebrates c. Cartilaginous fish d. Cephalocordataarrow_forwardUnlike bony fishes, amphibians havea. ears. b. jaws. c. a circulatory system.d. a heart.arrow_forward
- _____have scaleless skin and a heart with three chambers. a. Amphibians c. Ray-finned fishes b. Mammals d. Snakesarrow_forwardUnlike Archaeopteryx, modern birds have_______ . a. a long bony tail c. a two-chambered heart b. a toothless beak d. feathersarrow_forwardWhich statement is not true? A. Snails have radula B. Chitons are annelids C. Terrestrial slugs have a big hole on the side of their neck used for breathing D. Most clams catch algae on gillsarrow_forward
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